Grouping by Day for a Date Range

Hi,

I thought this would be easier but after looking all over the web I
had to post this question.  We have a workflow table that tracks when
an item goes in an out of a workflow state.  I would like to pull a
week's worth of data and group it by day.

My query to do this is:

DECLARE @[EMAIL PROTECTED]
 DATETIME;
DECLARE @[EMAIL PROTECTED]
 DATETIME;
DECLARE @[EMAIL PROTECTED]
 INT;

SELECT @[EMAIL PROTECTED]
(dd, 0, DATEDIFF(dd, 0, GETDATE()));
SELECT @[EMAIL PROTECTED]
(dd, 0, DATEDIFF(dd, 7, GETDATE()));
SET @[EMAIL PROTECTED]
 = 111;

SELECT DISTINCT
		@[EMAIL PROTECTED]
 AS STATE_NUM,
		CONVERT(CHAR(8), wf_entry.entrytime, 112) AS RE****TING_DATE,
		COUNT(wf_entry.itemnum) AS ENTERED,
		COUNT(wf_exit.itemnum) AS EXITED

FROM (SELECT DISTINCT *
	  FROM hsi.wflog AS wf
	  WHERE wf.statenum = @[EMAIL PROTECTED]
        AND wf.entrytime BETWEEN @[EMAIL PROTECTED]
 AND @[EMAIL PROTECTED]
) AS wf_entry
FULL OUTER JOIN (SELECT DISTINCT *
	  FROM hsi.wflog AS wf
	  WHERE wf.statenum = @[EMAIL PROTECTED]
          AND wf.exittime BETWEEN @[EMAIL PROTECTED]
 AND @[EMAIL PROTECTED]
) AS wf_exit
	ON wf_exit.itemnum = wf_entry.itemnum

GROUP BY CONVERT(CHAR(8), wf_entry.entrytime, 112)

ORDER BY RE****TING_DATE DESC

However, there is no way this query is right as it leaves a null row
with exiting values.  Could anyone offer any help / guidance?

Thanks